location /mnt/DEVapps/oracle/trcdev2db/11.2.0/dbhome_1/appsutil/log/TRCDEV2_gddev2db1/ApplyDBTechstack_xxxxx.log
please post the error from the above file

are you performing hot cloning or normal?
Are you performing the hot cloning ( using RMAN) or normal cloning method ?
I see you running the command "perl adcfgclone.pl dbTechStack."
please post the content of make.log
are you able to connect to database remotely?

-> I am cloning DB from hot backup that's why using dbTechStack feature, it will configure the target database ORACLE_HOME but it will not create control files or open the database then i will clone DB using rman duplicate command.

My DB is 11.2.0.3 so according to you i should upgrade my perl version to 5.10.0. but i'm afraid to say that when I clone TEST instance from PROD instance i don't get any such issues.
So should i go ahead and upgrade my perl version.

My DB is 11.2.0.3 so according to you i should upgrade my perl version to 5.10.0. but i'm afraid to say that when I clone TEST instance from PROD instance i don't get any such issues.
So should i go ahead and upgrade my perl version.

ankur please set the perl path from RDBMS home and the proceed with cloning
please see perl5lib path from the source and set accordingly on target and proceed
let see how t goes after setting the path